Roof rock structures and related roof support problems in the Pittsburgh coalbeds of southwestern Pennsylvania /
by Noel N. Moebs.

Description

Main Author

Moebs, Noel N.

Language(s)

English

Published

[Washington, D.C.] : Dept. of the Interior, Bureau of Mines, [1977]

Subjects

Mine roof bolting.
Mine timbering.
Coal > Coal / Geology > Coal / Geology / Pennsylvania > Coal / Geology / Pennsylvania / Pittsburgh coalbed.

Physical Description

[2], ii, 30 p. : ill., maps ; 27 cm.

Locate a Print Version

Find in a library

Viewability